Seam-rubbing machine



(No Model.)

0. s. FIPIELD SBAM RUBBING MACHINE.

Patented Jurie 5, 1888,

lTNESSEg INVE TU MM NllTE SATES Brion.

ATENT SEAM-RUBBING MACHINE.

SPECIFICATION forming part of Letters Patent No. 383,874, dated June 5, 1888.

Application filed July 16, 1887.

To all whom it 11mg concern..-

Be it known that I, CHARLES S. FIFIELD, of Revere, in the county of Suffolk and State of Massachusetts, have invented an Improved Seam-Rubbing Machine, of which the following is a specification, reference being had to the accompanyingdrawings, in which- Figure 1 is a perspective of the portion of the machine embodying my invention. Fig. 2 is a side elevation, partly in section, of the same; and Fig. 3 is a perspective of theprcsserfoot and its carrier.

My invention relates especially to seam-rub bers of the class shown in \Voodmans Patent, No. 297,216, granted April 22, 1884; and it consists in the combination of a work-support and rubbing-tool and a spool shaped presserfoot that is held to its work by a spring.

In the drawings, which illustrate so much of a seam-rubbing machine as is necessary to enable others skilled in the art to understand the nature of my present invention, the toolcarrying headAis oscillated on A in a way too well known to require description, and the rubbing-tool B is preferably shaped as shownthat is, is preferablya so-called U-shaped rubbing-tool-to allow that portion of it which acts upon the seam to reciprocate between the heads of thespool-shaped presserfoot D, which is mounted in the carrier d, and upon a pin carried by carrierci. The carrierd is mounted upon-a spindle, cl, fast to the frame A, and is forced toward the support F by the spring (1", whose tension is regulated by a nut, d, upon the spindle.

The guide-fingersG have their lower edges substantially concentric with the periphery of Serial No. 244,485. (No mo lel.)

the support F, so that when the seam is once properly inserted it is almost automatically guided, as will be readily understood by all skilled in the art. These fingers G are secured to a forked bracket, 9, which is fast to the frame A, and which isslotted, as plainly shown in Fig. '1, to receive the axle d of the prcsserfoot.

The seam to be rubbed is fed by the attend ant between the support F and thepresser foot D, presser-foot yielding sufficiently, and as it is fed through the machine it is guided partly by the guides G and partly by the spoolshaped presser-foot, which shifts slightly on its axle to suit variations in the thickness of the stock, and the seam rubbed down by the rubber B, which reciprocates in the wellknownmanner.

I have not shown the mechanism for driving the support F or that for driving the seamrubber B, my invention not relating to these features, and they being too familiar to require description.

I am aware of Collyers Patent, No. 341,407, dated May 4, 1886, and disclaim all that is shown in it.

What I claim as my invention is In aseam-rubbing machine, the combination herein described of a work-support and arubhing-tool, with aspool-shapedpresserfoot held to its work by means of a spring, substantially as and for the purpose set forth.

CHARLES S. FIFIELD. 

